I'm Spanish, if MK is interviewed in a Scottish radio by a Scottish journalist in company of a Scottish writer, and it's more difficult than usual for me to understand, my little knowledge of the British accent makes me think he's speaking with a Scottish accent, lol
Actually, I find more difficult to understand MK when he's being interviewed in the UK, or he talks to a British audience that when he's talking for other non native English audience, TV or radio... Specially when he's in Scotland or Newcastle, I find it harder to understand.
I can't understand almost anything that David Gilmour says no matter where he's talking, lol